Price of Rock crushing pervading the whole

The following are some of the distinguishing features of my machine: First, it is durable; second, it is portable; third, it saves the gold; fourth, it is adapted to all kinds of mining, either with or without quicksilver; fifth, it economizes 'water, only a little more than what will wet the dirt being necessary; sixth, it economizes labor in sluicing, the hand employed to tend sluice is not needed,in washing with my machine,Price of Rock crushing equipment, it can always be worked on a level with the bed-rock, or tail-ditch, so that the labor of throwing in the dirt is small when compared with that of sluicing, where,-in order to get the requisite fall, the head of the sluice must be so elevated as